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Waterspout · Gulf of Mexico

Waterspout September 13, 2015 · Gulf Side of the Lower Keys Out 20nm, Gulf of Mexico

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A large waterspout with attendant spray ring was observed approximately two miles northwest of the east end of the Seven Mile Bridge.

The wider storm

A thermally-enhanced circulation developing over Florida Bay and extreme south Florida produced deep convection originating east of Miami, which propagated southwest along a pre-existing cloud line just north of the Middle and Upper Keys. The resultant updrafts from new convective cells resulted in several waterspouts being observed just north of Islamorada and the Seven Mile Bridge.

Began near Marathon (24.7200, -81.1600).

Source: NOAA Storm Events Database, event 603148. Narratives are written by the National Weather Service forecast office that issued the report.

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